Jar-top fastening.



c. F. THATCHE R, JAR TOP FSTENING.

APPLICATION FILED MAY G. 1918.

1 ,292,920. Patented J an. 28, 1919.

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CHARLES F. THATGHER, OF PROVIDENCE, RHODE ISLAND.

JAR-TOP FASTENING.

Specification of Letters Patent.

Patentod J an. 28, 1919.

Application filed May 6, 1918. Serial No. 232,693.

To all whom t may cmwern:

Be it known that I, CHARLES F:THATCHER, a citizen of the United States, residing at Providence, in the county of Providence and State of Rhode Island, have invented a new and useful Improvement in J ar-Top Fastenings, of which the following is a specification.

This invention relates to certain new and useful improvements in jar top fastenings, and the primary object thereof is to provide a fastening which is capable of holding the top in a position so as to permit the escape of vapors during the heating of the contents, and which is also capable, upon a further movement, of positively looking the top in a position so as to seal the jar.

The invention further has for its object.

to provide a fastening which is simple and capable of easy and ready Operation, and to also enable the production to Ybe efected with minimum expense.

Further and other objects will be later set forth and manifested in the course of the following description.

In the drawings-- Fi re 1 is a fragmentary view, in section, showing the invention applied to a jar.

Fig. 2 is a section taken online 2-2 of Fig. 1.

Fig. 3 is a side elevation.

The jar A is provided With a peripheral Sharp or clean cut ledge B, and has the usual gasket seat C on which the gasket D engages, the latter in turn being engaged by the top E. The top has the common form of bail seat F, in which the horizontal part 1 of the bail engages. The bail is formed with depending vertical or right angular side arms 2, which latter extend below the ledge B, and are formed with circular eyes or loops 3. As depicted in Fig. 3, the loops are bent so as to provide parts which engage beneath and with the ledge B, so as to ride thereon in a manner later set forth. The ends of the side arms are extended horizontally at 4, and are .curved so as to conform to the jar exterior as depicted in Fig. 2, to form Operating arms or parts` the latter at their free ends being formed With loops 5, to form finger engaging members, and also locks, as will be now described. I

The fastening is applied so as to occupy the position shown in full lines in Fig. 1, in which position of the parts it will be seen that the loops 3 engage beneath the ledge B,

with the locks 5, however, disposed above the ledge. This disposition of the locks permits the top E to move upwardly to a slight and predetermined extent, so that during the cooking or heating of the contents of the jar, the latter having therein the fruits or vegetables to be preserved, the vapors resulting from such heating will be free to escape. After the heating hasbeen completed, and the contents are in condition so as to seal the jar, thenI the loops 5 are forced downwardly by the fingers or otherwise, so as to engage beneath the ledge B. This action results in the arms 2 and loops 3 being thrown or moved forwardly to the dotted line position of Fig. 1, and since the loops 5 are disposed below the ledge B, it will be apparent that the top is efl'ectively and positively held against any upward movement. In this manner, the top is ini'- tially locked to a partial extent, and is subsequentlv locked so as to seal the j ar.

In order to release the top and permit of its removal it is merely necessary to move the loops 5 from the dotted line position of Fig. 1 to the full line position of said figure and to then move the side arms 2 in the direction of the loops 5, so as to entirely disengage the fastening device from the top 4 It will also be apparent that since the arms 2 and the horizontal parts 4: thereof are independent of one another, less force will be necessary to operate the arms, rendering it easier for the operator to manipulate the parts.

Having thus described my invention, I claim as new and desire to secure by Letters Patent:-

1. In combination with a jar having a circular ledge below its top, a fastening composed of a bail having a horizontal member extending across the top and having depending vertical side arms, said arms having circular loops engageable with said ledge and having horizontal parts extending outwardly from the loops and formed with loops at their free ends for engagement with the ledge to lock the top in place, said last named loops being independently movable to extend above the ledge so as to hold the top in place to permit the escape of vapors, and upon down movement to engage beneath and with the ledge acting to move the depending arms forwardly to lock the top in sealed position.

Oones of this patent may be obtaned for five cents each, by addressing the Uommissioner of Patentfl,

lock the top in place.

In testimony Whereof I have signed my name to this specification in the presence" of tWo subscribing Witnesses.

I CHARLES F. THATCHER. Witnesses:

ADA E. HAGERTY, J. A. MLLER.

Washington, D. 0. 

